diff options
| author | Aboorva Devarajan <aboorvad@linux.ibm.com> | 2025-09-15 15:59:41 +0530 |
|---|---|---|
| committer | Madhavan Srinivasan <maddy@linux.ibm.com> | 2025-09-22 14:48:56 +0530 |
| commit | 2dc019ca39347f76891d34a992b67258078aa45d (patch) | |
| tree | c6a8c7f110029ab19b47d9847fbffb8c4c4a7bc8 /arch/powerpc/include | |
| parent | 9316512b717f6f25c4649b3fdb0a905b6a318e9f (diff) | |
powerpc/time: Expose boot_tb via accessor
- Define accessor function get_boot_tb() to safely return boot_tb value,
this is only needed when running in SPLPAR environments, so the
accessor is built conditionally under CONFIG_PPC_SPLPAR.
- Tag boot_tb as __ro_after_init since it is written once at initialized
and never updated afterwards.
Signed-off-by: Aboorva Devarajan <aboorvad@linux.ibm.com>
Tested-by: Tejas Manhas <tejas05@linux.ibm.com>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250915102947.26681-2-atrajeev@linux.ibm.com
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/time.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h index f8885586efaf..7991ab1d4cb8 100644 --- a/arch/powerpc/include/asm/time.h +++ b/arch/powerpc/include/asm/time.h @@ -29,6 +29,10 @@ extern u64 decrementer_max; extern void generic_calibrate_decr(void); +#ifdef CONFIG_PPC_SPLPAR +extern u64 get_boot_tb(void); +#endif + /* Some sane defaults: 125 MHz timebase, 1GHz processor */ extern unsigned long ppc_proc_freq; #define DEFAULT_PROC_FREQ (DEFAULT_TB_FREQ * 8) |